Somatic mutation of MutYH in Tunisian patients with sporadic colorectal cancer.

The MutYH gene is an adenine-specific DNA glycosylase that prevents G/T transversions. Germline mutation in this gene causes MYH-associated polyposis (MAP) that predispose to hereditary colorectal cancer (CRC). This study describes for the first time the association of the MutYH mutation with sporadic CRC.